rows of bright lights in the sky

It was dark- We were parking the car on the top of a hill so there was a clear view of the sky- we noticed these lights in the sky- at first I thought it was a fire work or something because of the brightness of it and the size of it- then I realized that I was looking at to straight paralell lines of round bright lights- then the two rows started going out at the same time - fist two then the second two and so on until they were all out- then we could see these very tiny bright white twinkleing lights that seemed to flutter around for about 30 seconds and then they dissapeared.